Granite is composed of feldspar, quartz, biotite and other ingredients. It has compact structure, high hardness, no debris, high temperature, strong durability, and low water absorption. It is a good natural stone.

The broken granite can be widely used in construction, bridge arches, pavement, foundation stone, chemical industry, metallurgy and other fields. It is an investment project with development prospects.

Applications of granite sand and gravel aggregates in different sizes

80-150 mm (gravel in over-large size)
40-80 mm (gravel in large size)
20-40 mm (gravel in medium size)
5-20 mm (gravel in small size)
Under 5 mm (sand)

Types of granite crushing equipment

Granite jaw crusher

Granite cone crusher

Granite impact crusher

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If you need to make a lot of sand for your business you are going to want to invest in a quality sand making plant. This plant allows you to take rocks and dirt and turn it into sand. You can produce all of the sand you need.

The machine can make other things as well like gravel. The machine is easy to use and it is crucial to have this machine if you need to produce these materials for your construction business.

The machine crushes grit and turns it into sand and plaster. Whether you are using it with rocks or stones, you can rely on the sand maker plant to crush the large materials and process them into grit and stand.

The machine consists of a vibrating feeder that moves the materials into the jaw crusher. Once the rocks have passed through the jaw crusher they go into the impact crusher where the materials are broken down into fine pieces. The vibrating screen screens out the larger pieces so you are left with the grit and sand.

1. What is  Neodymium Iron Boron Magnetic Powder (NdFeB) ?
NdFeB is also called magnet. This mineral is a tetragonal crystal composed of neodymium, iron and boron. Has a strong magnetic attraction.

2. The application of Neodymium Iron Boron Magnetic Powder
The strong magnetism of NdFeB makes it called a permanent magnet, and it is also one of the most commonly used rare earth magnets. This kind of magnet is widely used in electronic products such as hard disks, mobile phones, earphones, and batteries.

In the entire production process of neodymium iron boron, it is necessary to make powder and then complete a series of later processing processes.

1. Specific powder making process is: The raw material is fed through a bucket elevator into a European mill or a trapezium mill or a vertical mill for grinding, where it is ground to the required particle size and then passed through an analyser for powder selection and then into a powder collector for bagging.

1.Leading technology

National patent product, fourth-generation mill upgrading transformation, mature and stable.

2.Not easy to block material, high efficiency of powder selection

Adopt new hanging cage type powder selecting machine, frequency conversion control, fineness of finished product can be adjusted and controlled, the efficiency of powder selecting is greatly improved.

3.Advanced transmission, stable operation

Bevel gear overall transmission, strong power, high efficiency, large output, low energy consumption, sinking design, stable operation, small vibration, low noise.

4.Easy maintenance and low operating cost

Spindle drive system and fan drive system adopt rare lubrication, long oil change cycle, less maintenance frequency and low operation cost.

5.Economical

Edge-replaceable shovel saves you money and frequency-control separator and cyclone powder collector ensure high capacity.

6.Environmentally friendly

Unique air recycling system and dust collector make clean environment.

Recently, news came from the customer’s site that the production line of heavy calcium carbonate with an annual output of 500,000 tons built by Dawning macine was commissioned and operated normally and has been put into production. The client is a large local calcium carbonate milling company. A few years ago, it cooperated with Dawning macine and used several European Type mills. Customers own mines, mainly producing fine calcium carbonate, environmentally friendly putty powder, environmentally friendly water-based paint, activated calcium oxide, green building aggregates, etc.

Due to the increase in orders in 2021, in order to meet production needs and improve the company’s production specifications and standards, the user once again ordered 3 sets of Dawning macineMTW European Type mills to achieve the goal of increasing an annual output of 500,000 tons of heavy calcium powder, and gradually turn to carbonic acid. The cluster development of the calcium industry chain meets the needs of different industries for products, promotes the transformation and development of local enterprises, and realizes that equipment upgrades can drive efficiency upgrades!